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AI/LLM Developer

BigBear AI • Artificial Intelligence • Identity Management • Bachelor's Degree • Public Trust • Python • 1 day ago

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Salary

≈ $133k – $254k per year (Estimated)

Location

In office (Arlington)

Seniority

Senior · 5+ years exp

Confirmed on the employer's own hiring board on Oct 9, 2026. First seen by Alion on Oct 8, 2026. BigBear AI scores A on the Alion truth index.

Overview

Company

Impact

Profile match

BigBear AI

BigBear.ai is an AI and decision intelligence company headquartered in McLean, Virginia, that provides analytics, computer vision and software engineering for defense, intelligence, homeland and border security, travel and trade, and manufacturing and supply chain customers. Listed on the NYSE under the symbol BBAI, it traces its defense work back to 1988 and includes Pangiam, whose threat detection and facial recognition tools are used in airport and border screening. It hires software, full stack, embedded, AI and machine learning engineers, data scientists, vulnerability researchers, security engineers, operations research analysts and business development staff, many with clearances.

bigbear.ai • HQ: McLean, United States • Decision Intelligence • Artificial Intelligence • Computer Vision • Identity Management • 5000+ employees • Est. 1988

Tech stack of BigBear AI

Backed by AE Industrial Partners

Overview

BigBear.ai is seeking a Mid-Level AI/LLM Developer to support the development and implementation of AI-focused initiatives and pilot efforts supporting the Transportation Security Administration (TSA). This role will contribute to the development of AI-enabled capabilities from concept through implementation and will work closely with technical and functional teams to design, develop, test, integrate, and deploy solutions.

The ideal candidate has a strong software engineering background and hands-on experience developing applications that leverage artificial intelligence and large language models (LLMs).

What you will do

Develop and implement AI- and LLM-enabled applications and capabilities
Support AI pilot initiatives from initial concept through testing, integration, and deployment
Design and develop software solutions using Python and modern cloud technologies
Work with technical and functional stakeholders to understand requirements and translate them into technical solutions
Support API development, system integration, testing, troubleshooting, and deployment activities
Develop and evaluate prompts and LLM-based solutions to improve application performance and usability
Leverage AI-assisted development tools to improve software development efficiency
Contribute to the development of production-ready AI solutions and technical documentation
Collaborate in a fast-paced environment supporting emerging technology initiatives

What you should have

Bachelor’s degree in Computer Science, Engineering, Information Technology, or a related field
5+ years of relevant professional experience
Hands-on experience developing AI- or LLM-enabled applications
Strong software engineering and application development experience
Experience supporting solution design, development, testing, deployment, and integration
Strong analytical, problem-solving, and communication skills
Ability to collaborate effectively with both technical and functional stakeholders
U.S. Citizenship is required
Ability to obtain and maintain a DHS/TSA Moderate-Risk Public Trust or equivalent federal suitability determination

What we'd like you to have

Experience with Python development
Experience with AWS serverless architectures
Experience with Amazon Bedrock or similar generative AI platforms
Experience working with large language models and prompt engineering
Experience with model evaluation and performance optimization
Experience developing and integrating APIs
Experience using AI-enabled development tools such as Claude Code, GitHub Copilot, or similar technologies
Experience developing production-ready AI applications in a federal or enterprise environment
Existing or prior TSA/DHS Public Trust clearance is strongly preferred
Local to the Springfield, VA area is preferred

About BigBear.ai

BigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity. Customers and partners rely on Bigbear.ai’s predictive analytics capabilities in highly complex, distributed, mission-based operating environments. Headquartered in McLean, Virginia, BigBear.ai is a public company traded on the NYSE under the symbol BBAI. For more information, visit https://bigbear.ai/ and follow BigBear.ai on LinkedIn: @BigBear.ai and X: @BigBearai.

BigBear.ai is an Equal opportunity employer all protected groups, including protected veterans and individuals with disabilities.

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